Coldwave: Yes the panel lines, rivets, latches, and hatches are all drawn in with photoshop. I plan use them in the color map and bump map (4k square maps).

Then I will add drips layer, grunge layer, and chips and scratch layer along with more signage.

Not sure I am doing any of this correctly. I am making up the workflow as I blindly plod along.

I keep posting all the painful steps in the hopes that the folks that are more skilled with texture painting, based on some of the great works I have seen here, will steer me in the right direction if I start painting (literally) my self into a corner.

Here is the model before the fuselage paint over....